.nav-right{
    width: 57px;
    height: 231px;
    position: fixed;
    top: 200px;
    font-size: 12px;
    z-index: 200;
}
.nav-right div{
    width: 57px;
    height: 57px;
    background-color:rgba(255,255,255,0.5);
    margin-bottom: 1px;
    text-align: center;
}
.nav-right div:hover{
    background-color: red;
}
